So unvaccinated cause harm to others indirectly by burding the healthcare system. And one also does that by socially acceptable stuff like motorcycling (or maybe that's a plus if one is organ donor?).
> The viral load declined more rapidly for those who were fully vaccinated than those who were unvaccinated. However, investigators noted that vaccinated individuals did not have a lower peak viral load than those who were vaccinated.
Tldr: there's probably a window where vaccinated people can transmit the virus as effectively as unvaccinated people, but that window is almost certainly shorter.
While that's probably not helpful in household settings, it's still plenty useful in cutting disease spread during short terms in confined spaces.